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青藏高原东部过渡区水环境中全氟化合物的分布特征

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郑宇, 路国慧, 邵鹏威, 盖楠, 杨永亮, 冯娟, 赵全升. 青藏高原东部过渡区水环境中全氟化合物的分布特征[J]. 环境化学, 2020, (5): 1192-1201. doi: 10.7524/j.issn.0254-6108.2019081506
引用本文: 郑宇, 路国慧, 邵鹏威, 盖楠, 杨永亮, 冯娟, 赵全升. 青藏高原东部过渡区水环境中全氟化合物的分布特征[J]. 环境化学, 2020, (5): 1192-1201. doi: 10.7524/j.issn.0254-6108.2019081506
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ZHENG Yu, LU Guohui, SHAO Pengwei, GAI Nan, YANG Yongliang, FENG Juan, ZHAO Quansheng. Level and distribution of perfluorinated compounds in snow and water samples from the transition zone in eastern Qinghai-Tibet[J]. Environmental Chemistry, 2020, (5): 1192-1201. doi: 10.7524/j.issn.0254-6108.2019081506
Citation: ZHENG Yu, LU Guohui, SHAO Pengwei, GAI Nan, YANG Yongliang, FENG Juan, ZHAO Quansheng. Level and distribution of perfluorinated compounds in snow and water samples from the transition zone in eastern Qinghai-Tibet[J]. Environmental Chemistry, 2020, (5): 1192-1201. doi: 10.7524/j.issn.0254-6108.2019081506
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青藏高原东部过渡区水环境中全氟化合物的分布特征

  • 1. 青岛大学环境科学与工程学院, 青岛, 266071;

  • 2. 国家地质实验测试中心, 北京, 100037

    • 通讯作者: 路国慧, E-mail: guohui-lu@hotmail.com ;  赵全升, E-mail: zqs0811@sina.com
  • 基金项目:

    国家自然科学基金（41673022）资助.

Level and distribution of perfluorinated compounds in snow and water samples from the transition zone in eastern Qinghai-Tibet

  • 1. College of Environmental Sciences and Engineering, Qingdao University, Qingdao, 266071, China;

  • 2. National Research Center for Geo-Analysis(NRCGA), Beijing, 100037, China

    • Corresponding authors: LU Guohui, guohui-lu@hotmail.com ;  ZHAO Quansheng, zqs0811@sina.com
  • Fund Project: Supported by the National Natural Science Foundation of China(41673022).

  • 摘要: 为探究高原过渡区水环境中全氟化合物（perfluorinated compounds，PFCs）的污染状况，以青藏高原东部过渡区典型高山峡谷区、若尔盖草原湿地区为研究区，应用固相萃取结合高效液相色谱-电喷雾负电离源串联质谱的方法对研究区内的降雪样品、河水和草原湿地地表径流样品中的全氟化合物进行测定.降雪样品中平均∑PFCs浓度为6266 pg·L-1，共检出11种PFCs，其中PFBA含量最高，表明该地区的大气中存在着以PFBA为主的PFCs污染.河水样品中检测到7种PFCs，高山峡谷区河水样品中ΣPFCs浓度范围为272—2244 pg·L-1，若尔盖草原湿地区河水样品中ΣPFCs浓度范围为727—5149 pg·L-1，远低于我国东部地区及长江黄河下游区域.若尔盖草原湿地地表径流样品检测出11种PFCs，∑PFCs浓度范围为5837—13720 pg·L-1，高于当地河水中PFCs的浓度，表明地表径流是当地河水中PFCs不可忽略的非点源污染源.运用熵值法得到青藏高原东部过渡区河水中PFOA、PFOS及PFBA的风险值均远低于参考值，未达到对生态环境具有风险的水平.
    Abstract: Seventeen perfluorinated compounds (PFCs) were quantified by high performance liquid chromatography and tandem mass spectrometry (HPLC-MS/MS) to study the level and distribution of PFCs in snow, river water and surface runoff samples in eastern Qinghai-Tibet Plateau. Concentrations of the total of PFCs (∑PFCs) in the snow samples ranged from 5021 to 8015 pg·L-1, averaging 6266 pg·L-1. Eleven PFCs were detected in snow samples and PFBA was the predominant compound (range: 3641-5825 pg·L-1, mean: 4549 pg·L-1). Concentrations of ∑PFCs in river water samples of the alpine-gorge area(range: 272-2244 pg·L-1) and Zoige steppe-wetland(range: 727-5149 pg·L-1) were much lower than that in eastern China and low reaches of Yangtze River and Yellow River. Concentrations of ∑PFCs in surface runoff samples (range: 5837-13720 pg·L-1) were higher than that in river water samples from Zoige steppe-wetland, indicating that surface runoff was an important source of PFCs in river water. A preliminary environmental risk assessment indicated that the PFOA, PFOS and PFBA in river water samples in the study area might have no or low environment risk to local aquatic ecosystem.
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  • 收稿日期:  2019-08-15

青藏高原东部过渡区水环境中全氟化合物的分布特征

    通讯作者: 路国慧, E-mail: guohui-lu@hotmail.com ;  赵全升, E-mail: zqs0811@sina.com
  • 1. 青岛大学环境科学与工程学院, 青岛, 266071;
  • 2. 国家地质实验测试中心, 北京, 100037
  • 收稿日期:  2019-08-15
基金项目:

国家自然科学基金（41673022）资助.

摘要: 为探究高原过渡区水环境中全氟化合物（perfluorinated compounds，PFCs）的污染状况，以青藏高原东部过渡区典型高山峡谷区、若尔盖草原湿地区为研究区，应用固相萃取结合高效液相色谱-电喷雾负电离源串联质谱的方法对研究区内的降雪样品、河水和草原湿地地表径流样品中的全氟化合物进行测定.降雪样品中平均∑PFCs浓度为6266 pg·L-1，共检出11种PFCs，其中PFBA含量最高，表明该地区的大气中存在着以PFBA为主的PFCs污染.河水样品中检测到7种PFCs，高山峡谷区河水样品中ΣPFCs浓度范围为272—2244 pg·L-1，若尔盖草原湿地区河水样品中ΣPFCs浓度范围为727—5149 pg·L-1，远低于我国东部地区及长江黄河下游区域.若尔盖草原湿地地表径流样品检测出11种PFCs，∑PFCs浓度范围为5837—13720 pg·L-1，高于当地河水中PFCs的浓度，表明地表径流是当地河水中PFCs不可忽略的非点源污染源.运用熵值法得到青藏高原东部过渡区河水中PFOA、PFOS及PFBA的风险值均远低于参考值，未达到对生态环境具有风险的水平.

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